react addeventlistener functional component code example
Example: event listener for functional component
import React, { useEffect } from 'react';
const Component = (props) => {
useEffect(() => {
window.addEventListener('scroll', handleScroll);
});
useEffect(() => {
return () => {
window.removeEventListener('scroll', handleScroll);
};
}, []);
function handleScroll() {
let scrollTop = window.scrollY;
}
return ()
}